A review of the millipedes (Diplopoda) of Namibia, with identification keys and descriptions of two new genera and five new species
Author
Vohland, Katrin
Author
Hamer, Michelle
text
African Invertebrates
2013
2013-06-30
54
1
251
251
journal article
2305-2562
Chaleponcus limbatus
Attems, 1914
Figs 79–82
Chaleponcus limbatus
: Attems 1914
a
: 203–205
, figs 257–260; 1922: 204; 1928: 412; Kraus 1960: 27;
Schubart 1966: 125; Hamer 1998: 58.
Chaleponcus dolabratinus
Kraus, 1960: 21
, 27, figs 30–34; Schubart 1966: 123; Hamer 1998: 58.
Syn. n.
Diagnosis: Telocoxite rounded but with median apex angular, and median distal margin serrated. Basal lamella of gonopod tarsus with angular extension (
Fig. 79
,
tl2
).
Description:
Size
: Width of male 4.0–4.5 mm; 61–64 segments.
Colour
: Dark brown, metazonites posteriorly bordered with reddish brown.
Head
: 6 supralabral pits.
Collum
: 2–3 folds (
Fig. 82
).
Tergites and sternites
: Prozonites with longitudinal striation, partly with faint horizontal striae. Metazonites and sternites smooth.
Gonopods
: Telocoxite aborally with a rounded lamella, and medially with a distally directed lamella having a faintly serrated border. Telopodite with tibial process very small, having 0–2 minute basal processes. Three tarsal lamellae as usual, the basal inner one (
Fig. 79
,
tl1
) beset with fringes, the outer one (
Fig. 79
,
tl2
) with angular extension of variable length.
Figs 79–82.
Chaleponcus limbatus
Attems
, ♂: (79) gonopod, aboral view; (80) epiproct, lateral view; (81) gonopodial aperture; (82) head and segments 1–8, lateral view. Abbreviations: (col) collum, (e) epiproct, (hy) hypoproct, (pa) paraproct, (s) solenomere, (ste) sternite, (tl1, tl2, tl3) tarsal lobes 1–3. Scale bar = 1 mm.
Holotype
of
C. dolabratinus
(examined):
♂
NAMIBA: Waterberg [several localities by this name, so coordinates uncertain],
26–28.x.1952
, Mertens (
SMFD 2725
/1).
Paratype
(examined):
1♀
same data as holotype (
SMFD 2726
/2)
.
Other material examined:
NAMIBIA
:
1♂
Rehoboth district
,
Garies Oos
489 [
23°19'S
17°07E
],
9.ii–23. iii.1996
,
E. Marais
(
SMN 22134
)
;
1♂
Windhoek district
,
Hoffnung
66 [
22°32'22"S
17°11'47"E
,
1922 m
],
3.ii.1971
, M.L.
Penrith
, ‘
B.H.
&
E.M.
’ (
SMN 21713
) (
NMNW
)
;
1♂
Kamanjab district
,
Etosha Game Park
[
18°41'S
15°46'E
],
5.iii.1969
,
P.G. Olivier
(
SMN 21649
) (
NMNW
)
;
1♂
West
Caprivi
,
Buffalo Base
[
17°50'S
23°57'E
],
iii–x.1990
,
E. Marais
(
SMN 21964
) (
NMNW
)
;
1♂
Kamanjab district
,
Bloubokdraai
[
19°37'S
14°50'E
],
10.viii.1987
,
E. Griffin
(
SMN 21920
) (
NMNW
)
;
1♂
Omaheke region
,
east Hereroland
,
Eiseb River
[
21°29'S
18°31'E
],
18.xi–15.xii.1988
,
E. Marais
&
M. Paxton
(
SMN 21982
) (
NMNW
)
.
1♂
Otjozondjupa region
,
100 km
N of Windhoek
,
Biodiversity Observatory Otjiamongombe
,
21°35'S
16°56'E
,
3.ii.2003
,
J. Frisch
&
K. Vohland
(BIOTA1529) (
ZMHB
)
;
8♂
7♀
5 juv.
Katima Mulilo district
,
Salambala
camp site,
17°50'01"S
24°36'09"E
,
23–30.xii.2002
,
A.H. & M.K. Kirk-Spriggs
, hand collected (
SMN 22146–22164
) (
NMNH
)
;
1♂
1♀
7 juv.
Owambo
,
Onkeleiwa
,
17°25'S
15°29'E
, in mopane leaf litter,
20.i.1993
,
E. Marais
(
SMN 22132
) (
NMNW
)
.
Distribution: Widely distributed in northern
Namibia
(
Khomas
and north up to
Kunene
River).
Remarks: The only distinction between
C. limbatus
and
C. dolabratinus
is the size of the outer tarsal lamella. Examintion of numerous specimens showed that this is a variable feature. O. Kraus (pers. comm.) indicated that characteristics of the gonopods might have been overstressed in relation to somatic features.